/*
 * Copyright 2013 Glassy Cinema.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package hu.glassy.web.component.visitor;

import hu.glassy.web.component.behaviour.FormComponentBehavior;
import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;
import org.apache.wicket.Component;
import org.apache.wicket.util.visit.IVisit;
import org.apache.wicket.util.visit.IVisitor;

/**
 * Hibaüzeneteket adja hozzá a hibás értéket tartalmazó input-okhoz
 *
 * @author molnar.alexander@sonrisa.hu
 * @param <T>
 */
public class ErrorMessageFormVisitor<T> implements IVisitor<Component, Void>, Serializable
{

  Set<Component> visited = new HashSet<Component>();

  @Override
  public void component(final Component c, final IVisit<Void> visit)
  {
    if (!visited.contains(c))
    {
      visited.add(c);
      c.add(new FormComponentBehavior<T>());
    }
  }
}
